Unusual Startup Sound

Discussion in 'MacBook Pro' started by TXbug, Jan 1, 2012.

  1. TXbug macrumors member

    TXbug

    Joined:
    Aug 24, 2009
    Location:
    Austin, Texas
    #1
    Normally I get a sound similar to a chord when my Macbook Pro starts up. However, I get a sound like "do dit" before the normal startup sound. After some experimentation, I found that if I have a disk, CD or DVD, in the DVD drive, there is no "do dit" sound, only the normal startup sound. If the DVD drive is empty, I get both sounds.

    A searched of this forum and by Google yielded nothing.

    What is going on? How do I correct this annoying problem?
     
  2. iThinkergoiMac macrumors 68030

    Joined:
    Jan 20, 2010
    Location:
    Terra
    #2
    I have no idea what the "do dit" sound is, as "do dit" tells me nothing of what the sound sounds like. Does it sound like it is coming from the speakers, or does it sound like it is mechanical? There's a large chance that it's simply your optical drive checking for the presence of a disc, and this operation happens before the startup chime.
     
  3. Ivan P macrumors 68030

    Ivan P

    Joined:
    Jan 17, 2008
    Location:
    Home
    #3
    If you do a search of the forums, you'll find many people wondering about this.

    It's perfectly normal - as you noticed, it's the disc drive. When the computer starts up, it briefly checks if there's a disc inserted, which is why the noise is present only when there's no disc (it's the parts of the disc drive moving to make sure there's no disc).
     
  4. TXbug thread starter macrumors member

    TXbug

    Joined:
    Aug 24, 2009
    Location:
    Austin, Texas
    #4
    It is a electronic sound coming through the speakers. It is NOT a mechanical sound from the DVD drive.
     
  5. iThinkergoiMac macrumors 68030

    Joined:
    Jan 20, 2010
    Location:
    Terra
    #5
    Can you record it somehow? I'm 99% sure that Ivan and I are right, that it's your optical drive checking for the presence of a disc. This is confirmed by the fact that it only happens when there is no disc in the drive. I don't know what else it could be.
     
  6. chillfrilla macrumors member

    Joined:
    Dec 30, 2011
    #6
    ur macbook is fine . get that OCD checked so u dont have to worry about little things that are acually normal
     
  7. fisherking macrumors 603

    fisherking

    Joined:
    Jul 16, 2010
    Location:
    ny somewhere
    #7
    also sure it's the disk drive, sounds EXACTLY like you described...
     
  8. dontwalkhand macrumors 601

    dontwalkhand

    Joined:
    Jul 5, 2007
    Location:
    Phoenix, AZ
    #8
    That sounds exactly like my optical drive. Don't forget the drive is right under the speakers, leading you to believe that the speaker is making that noise...Completely normal.
     
  9. TXbug thread starter macrumors member

    TXbug

    Joined:
    Aug 24, 2009
    Location:
    Austin, Texas
    #9
    I have three other Mac's, including a Macbook Pro, and members of my family have two Macbook Pro's. None makes this electronic sound when the DVD drive is empty.

    This is not normal.
     
  10. GuitarG20 macrumors 65816

    GuitarG20

    Joined:
    Jun 3, 2011
    #10
    in that case, we need a recording, because most of us have no idea what kind of sound you're referring to.
     
  11. fisherking macrumors 603

    fisherking

    Joined:
    Jul 16, 2010
    Location:
    ny somewhere
    #11
    my new mbp makes this noise. my previous mb (late 2008) USED to make this noise, until one of the 10.6 updates.

    not sure why that is, but it's perfectly normal with SOME macs...
    put your ear near the optical drive. try it AGAIN with a cd inserted.
    CALL apple if it's still troubling you...
     
  12. mgartner0622 macrumors 65816

    mgartner0622

    Joined:
    Jun 6, 2010
    Location:
    Colorado, USA
    #12
  13. saberahul macrumors 68040

    Joined:
    Nov 6, 2008
    Location:
    USA
    #13
    I think his mic is bad but I know what sounds you're talking about in regards to the booting up and ejecting the disk. For some reason, I find these sounds to be very very cool.
     

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